Abstract

Optimal formulations of low-viscosity marine fuel (LMF) involving heavy diesel fractions of secondary origin and containing cold flow improvers and antioxidants have been found by mathematical modeling using the pour point, sulfur content, and density as critical parameters. The experimentally obtained characteristics of laboratory LMF samples prepared according to the calculated formulations correlate well with theoretical data and comply with the requirements of regulatory documents. The possibility of involving heavy distillates, produced by Angarsk Petrochemical Company, in LMF is shown. The antioxidant Kerobit TP 26 P is proposed as a stabilizer in the production of LMF composed of a heavier diesel fraction from the atmospheric column of the GK-3 unit and the atmospheric–vacuum distillation residue of the hydrogenated product from units for hydrotreating of heavy middle-distillate fractions of primary and secondary oil refining. The effectiveness of the antioxidant has been evaluated in terms of change in total sediment, which is a measure of oxidative stability, as well as by the existent gum content. The EPR technique has proved the occurrence of radical reactions during storage of heavy diesel fractions of secondary origin and the inhibitory effect of Kerobit-TP 26 P on these processes.

中文翻译：

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基于次生重质柴油馏分的低粘度船用燃料：问题和解决方案

摘要

通过使用倾点，硫含量和密度作为关键参数的数学模型，发现了涉及次生重柴油馏分并包含冷流改进剂和抗氧化剂的低粘度船用燃料（LMF）的最佳配方。根据所计算的配方制备的实验室LMF样品的实验获得的特性与理论数据紧密相关，并且符合法规文件的要求。显示了由Angarsk石化公司生产的重质馏出物可能包含在LMF中。抗氧化剂Ke​​robit TP 26 P被提议用作LMF生产的稳定剂，该LMF由来自GK-3装置常压塔的较重柴油馏分和用于重质中间产物加氢处理的装置的加氢产物的常减压蒸馏残渣组成-一级和二级炼油的馏分。抗氧化剂的有效性已根据总沉积物的变化进行了评估，该变化是氧化稳定性的一种衡量标准，还通过存在的树胶含量进行了评估。EPR技术已证明在储存次要来源的重质柴油馏分期间会发生自由基反应，以及Kerobit-TP 26 P对这些过程的抑制作用。抗氧化剂的有效性已根据总沉积物的变化进行了评估，该变化是氧化稳定性的一种衡量标准，还通过存在的树胶含量进行了评估。EPR技术已证明在储存次要来源的重质柴油馏分期间会发生自由基反应，以及Kerobit-TP 26 P对这些过程的抑制作用。抗氧化剂的有效性已根据总沉积物的变化进行了评估，该变化是氧化稳定性的一种衡量标准，还通过存在的树胶含量进行了评估。EPR技术已证明在储存次要来源的重质柴油馏分期间会发生自由基反应，以及Kerobit-TP 26 P对这些过程的抑制作用。